Henry e



(No Model.)

H. E. WAITE.

TELEPHONE SWITCH.

UNITED STATES PATENT rricn.

HENRY E. VVAITE, OF NEW YORK, N. Y.

TELEPHONE-SWITCH.

SPECIFICATION forming part of Letters Patent No. 305,552, datedSeptember 23, 1884.

(No model.)

To all whom it may concern.- 7

Be it known that I, HENRY E. WAITE, a citizen of the United States,residing in the city, county, and State of New York, have inventedcertain new and useful Improvements in Telephone-Switches, of which thefollowing is a specification.

My invention relates to telephone-switches for use in telephone systems;and it consists in the means for connecting the telephonecircuit at thesubscribers station so as to normally include the signaling or callingappa' ratus, and when the telephone-instruments at the station are inuse to include the latter in the circuit, to the exclusion of thesignaling devices.

. Referring to the accompanying drawings, forming part of thisspecification, Figure 1 shows an ordinary telephone-box with myimprovements added thereto. Fig. 2 is a plan, and Fig. 3 a side, view ofthe operating parts of my invention.

The transmitter-telephone T may be ar ranged as usual in the box A,containing the switching devices, or in aseparate box, andreceiving-telephone Ris normally hung upon the projecting arm of thelever 1. This lever is pivoted at its inner end to the box or case, andis provided with a suitable hook or finger to receive the receiver R atits outer end. When the telephone R is on the hook, the lever is in itslowermost position, (shown in Fig. 2;) but by some suitable meansas aspring, 5so as to be held in its highest position. Located in andextending through the case, preferably on the front, is a push button orbar, 2, arranged to slide in any suitable supports and to be pressedforward or held in its normal position by some suitable spring, as 7.The under side of this bar is provided with a notch or recess, 6, andupon the upper side is located a standard having a cross -bar, 4, ofconducting material. From the side of the box projects a block orstandard, 8, of insulating material, and upon opposite sides of thisblock are placed the conductingstrips 9 10 11 12, connected to the lineand branch circuits, including the signaling and telephone instruments,in an obvious and well-known manner, one form of such connections beingshown in the drawings.

Such being the construction of the various parts, I will now proceed todescribe their operation. It is understood that in the nor mal conditionof the station ,when not in use, the hand telephone or receiver hangsupon the hook of lever 1, the push button or lever 2 projects throughthe case, as seen in Fig. 3, and the conductingbar 4 is in contact withthe spring-connections 11 12, so that the linecircuit is normallythrough the signaling instrument or bell. When it is desired to use theinstruments, the receiver is removed from the hook of lever 1, when thespring 5 causes it to bear upon the under side of the push bar or button2, which is then pushed in, so as to cause the conducting-bar 4 to breakcontact with the strips 11 and 12, and to make contact with the strips 9and 10, and the bar 1 engages with and. enters the notch 6 on theunderside of the push-bar, and securely holds it in position. When theoperator is through using the instruments, he hangs the receiver uponthe hook of the lever l and pulls the hook down, drawing the lever outof the notch 6 of the push-lever, and the spring 7 forces the latter outto its normal position, and causes the conducting-bar 4 to break contactwith springs 9 and 10 and make contact with 11 and 12, thereby switchingthe telephone-instruments out of circut and the signaling-instrumentsinto circuit again.

' I do not wish to be understood as limiting myself to the precisemechanism shown and described, as many modifications may be made in thedetails of the device without departing from the spirit of theinvention. I

What I claim is- 1. The combination, in a telephone-switch, withcontact-plates, of a push-bar supporting a conductingstrip adapted tomake contact with the said plates, and a telephone-supporting baradapted to lock the push-bar in position, as set forth.

2. The combination, in a telephone-switch, with contact-plates, of aspring-pressed pushbar carrying a conducting-strip adapted to engagewith either set of contacts, and a pivoted telephone-supporting baradapted to engage with said push-bar and hold it in position while thetelephone is removed from said bar, as set forth.

3. The combination, in .a telephoneswitch apparatus, with acontact-plate having mainline terminals and signaling and telephoneapparatus terminals, of a spring-actuated pu sh-.

5 bar carrying a conducting-strip adapted normally to complete theconnection between the main-line and the signaling apparatus, and aspring actuated telephone supporting bar adapted to hold the push bar soas to (30111- X Io plete the connection between the main-line andtelephone instruments when said instruments are in use, and toautomatically restore the signaling apparatus to the main line, when thetelephone is hung up, by pulling down on I 5 the hook, substantially asset forth.

WM. H WOODHULL, O. SPARMAN.

